Process for coating molds used for melting highly pure silicon for photovoltaic purposes in the production of wafers, comprises inserting silane with ammonia into the inner side of an externally heated crucible

摘要

Process for coating molds comprises inserting silane with ammonia into the inner side of an externally heated crucible. The crucible is heated to above 500 deg C. An Independent claim is also included for a device for carrying out the process.